Low-background spectrometer for the study of fast neutron-induced (n,α) reactions

被引：6

作者：

Khriachkov, VA ^{[1
]}

Ketlerov, VV ^{[1
]}

Mitrofanov, VF ^{[1
]}

Semenova, NN ^{[1
]}

机构：

[1] Obninsk Phys & Power Engn Inst, Obninsk 249020, Kalvga Reg, Russia

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2000年 / 444卷 / 03期

关键词：

alpha-particle spectroscopy; ionization chamber; waveform digitizer; background suppression;

D O I：

10.1016/S0168-9002(99)01168-7

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

An a-particle spectrometer based on an ionization chamber with Frisch grid and a waveform digitizer has been developed for studies of fast neutron-induced (n,alpha) reactions. The information on the energy of the a-particle and its emission angle can be obtained from the amplitude and rise time of the digitized anode signal. For a situation where both the solid target on the cathode of the ionization chamber and the working gas are the cc-particle sources, a new method for the suppression of the neutron-induced background is proposed. The background due to gaseous cc-particles was reduced by a factor of 30. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：614 / 621

页数：8

共 9 条

[1] A PRECISE METHOD FOR CHARGED-PARTICLE COUNTING EMPLOYING ENERGY AND ANGLE INFORMATION FROM GRIDDED ION CHAMBERS [J].

BUDTZJORGENSEN, C ;

KNITTER, HH .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1984, 223 (2-3) :295-302

[2]

GLEDENOV YM, 1997, P INT C NUCL DAT SCI, P511

[3]

GOVERDOVSKI AA, 1994, P INT C NUCL DAT SCI, P117

[4] CHARGED-PARTICLE EMISSION IN REACTIONS OF 15-MEV NEUTRONS WITH ISOTOPES OF CHROMIUM, IRON, NICKEL, AND COPPER [J].

GRIMES, SM ;

HAIGHT, RC ;

ALVAR, KR ;

BARSCHALL, HH ;

BORCHERS, RR .

PHYSICAL REVIEW C, 1979, 19 (06) :2127-2137

[5] LARGE SOLID ANGLE SPECTROMETER FOR THE MEASUREMENTS OF DIFFERENTIAL (N, CHARGED-PARTICLE) CROSS-SECTIONS [J].

ITO, N ;

BABA, M ;

MATSUYAMA, S ;

MATSUYAMA, I ;

HIRAKAWA, N .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1994, 337 (2-3) :474-485

[6] Direct experimental determination of Frisch grid inefficiency in ionization chamber [J].

Khriachkov, VA ;

Goverdovski, AA ;

Ketlerov, VV ;

Mitrofanov, VF ;

Semenova, NN .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1997, 394 (1-2) :261-264

[7]

Khryachkov VA, 1998, INSTRUM EXP TECH+, V41, P171

[8] HELIUM PRODUCTION IN PURE ELEMENTS, ISOTOPES, AND ALLOY-STEELS BY 14.8-MEV NEUTRONS [J].

KNEFF, DW ;

OLIVER, BM ;

FARRAR, H ;

GREENWOOD, LR .

NUCLEAR SCIENCE AND ENGINEERING, 1986, 92 (04) :491-524

[9] NEUTRON-INDUCED REACTIONS ON NI-58 [J].

PAVLIK, A ;

WINKLER, G ;

UHL, M ;

PAULSEN, A ;

LISKIEN, H .

NUCLEAR SCIENCE AND ENGINEERING, 1985, 90 (02) :186-202

← 1 →